A digital multimeter that can measure frequency has a peak-detection circuit. The meter measures the time between the two consecutive crests (peak of waveform) using the peak-detection circuit. ... The meter calculates the frequency using the time between the two crests of the waveform.
How can you measure frequencies?
- Digital multimeters. These instruments display the measured frequency as a numerical value on a digital display. ...
- Power quality analyzers. ...
- Power analyzers.
What is the most accurate way to measure frequency?
The frequency can be calculated by multiplying the count by the frequency of the unknown signal. To summarize, by using two counters, you can get more accurate frequency measurement for higher frequencies. The larger the period of the known signal used to gate the counting, the smaller the measurement error.5 nov 2020
How do you measure frequency?
Frequency can be measured by following ways, Counting: Calculating the frequency of a repeating event is accomplished by counting the number of times that event occurs within a specific time period, then dividing the count by the length of the time period.
Why do we measure frequency?
9.8. 1 The principle of frequency measurement Frequency measurement is a very important application of both counting and timing. Fundamentally, frequency measurement is a measure of how many times something happens within a certain known period, as illustrated in Figure 9.17.